The reliability evaluation of configuration of bus arrangement in substations by the variable failure rate of power circuit breaker under time-based maintenance

2016 ◽  
Author(s):  
Sumate Lipirodjanapong ◽  
Cattareeya Suwanasri ◽  
Thanapong Suwanasri
Keyword(s):  
Failure Rate ◽  
Circuit Breaker ◽  
Reliability Evaluation ◽  
Power Circuit

scholarly journals Capacitor Commutation Method for MVDC Hybrid Circuit Breakers

Designs ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 28
Author(s):  
Hyosung Kim
Keyword(s):  
Short Circuit ◽  
Circuit Breaker ◽  
Reverse Current ◽  
Resonant Circuit ◽  
Power Circuit ◽  
Power Sources ◽  
Semiconductor Switch ◽  
Current Commutation ◽  
Dc Circuit Breaker ◽  
Hybrid Circuit

The medium voltage DC (MVDC) type system can connect multiple terminals to a common MVDC bus, so it is possible to connect several renewable DC power sources to the common MVDC bus, but a DC circuit breaker is needed to isolate short circuit accidents that may occur in the MVDC bus. For this purpose, the concept of a hybrid DC circuit breaker that takes advantage of a low conduction loss contact type switch and an arcless-breaking semiconductor switch has been proposed. During break the hybrid switch, a dedicated current commutation device is required to temporarily bypass the load current flowing through the main switch into a semiconductor switch branch. Existing current commutation methods include a proactive method and a reverse current injection method by a LC (Inductor-capacitor) resonant circuit. This paper proposes a power circuit of a new MVDC hybrid circuit breaker using a low withstanding voltage capacitor branch for commutation and a sequence controller according to it, and verifies its operation through an experiment.

The Impact of Shunt Capacitor Installations on Power Circuit Breaker Application

1980 ◽  
Vol PAS-99 (6) ◽  
pp. 2210-2222 ◽  
Author(s):  
T. McCauley ◽  
D. Pelfrey ◽  
W. Roettger ◽  
C. Wood
Keyword(s):  
Circuit Breaker ◽  
Power Circuit ◽  
Shunt Capacitor ◽  
The Impact

Power-Circuit-Breaker Theory and Design

1975 ◽  
Vol 21 (20) ◽  
pp. 1142 ◽  
Author(s):  
J.R. Mortlock
Keyword(s):  
Circuit Breaker ◽  
Power Circuit

Power circuit breaker using micro-mechanical switches

2007 ◽  
Vol 3 (1/2) ◽  
pp. 88
Author(s):  
George G. Karady ◽  
Gerald Thomas Heydt
Keyword(s):  
Circuit Breaker ◽  
Power Circuit

The Utilization of Micromechanical Devices in a Power Circuit Breaker

2005 ◽  
Vol 33 (10) ◽  
pp. 1159-1174 ◽  
Author(s):  
George G. Karady ◽  
Gerald T. Heydt ◽  
Esma S. Gel ◽  
Norma F. Hubele
Keyword(s):  
Circuit Breaker ◽  
Power Circuit ◽  
Micromechanical Devices
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